3 i& W3 B, o1 l. P5 _7 S% _tvb now,tvbnow,bttvb
, c; N3 `# _+ J- b) Q- Xtvboxnow.comNo, I read that when the leaves fall it released CO2 back to nature.
8 W8 ~5 M6 C/ m$ R: J c2 [tvboxnow.comI don't know its true or not.
8 a G! q- V$ o- V, f0 s5 A z! [TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。SweetLemon 發表於 2016-7-14 08:05 PM  A tree can absorb 13lb CO2 every year. A typical V8 car produce 220g CO2 per km. How many trees are needed? |